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https://github.com/TheAlgorithms/Ruby
synced 2024-12-26 21:58:56 +01:00
60 lines
1.9 KiB
Ruby
60 lines
1.9 KiB
Ruby
# A ruby program to find average median
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# Reference: https://dev.to/colerau/how-to-find-the-median-and-mean-of-an-array-in-ruby-4f04
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module AverageMedian
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def self.average_median(n, *array)
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if n.instance_of? Integer
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if n == array.size
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array.sort
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if array.size % 2 == 0
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mid_element_1 = array.size/2
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mid_element_2 = mid_element_1 + 1
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puts "The average median of the following elements #{array} is #{(array[mid_element_1 - 1] + array[mid_element_2 - 1]) / 2}."
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else
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mid_element = (array.size + 1) / 2
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puts "The average median of the following elements #{array} is #{array[mid_element - 1]}."
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end
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else
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puts "Provide the required #{n} elements properly!"
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end
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else
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raise
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end
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rescue
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puts "Error: Please provide number only!"
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end
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end
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#
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# Valid inputs
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#
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puts AverageMedian.average_median(2, 3, 1)
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# The average median of the following elements [3, 1] is 2.
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puts AverageMedian.average_median(5, 1, 2, 3, 4, 5)
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# The average median of the following elements [1, 2, 3, 4, 5] is 3.
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puts AverageMedian.average_median(3, 2, 2, 2)
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# The average median of the following elements [2, 2, 2] is 2.
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puts AverageMedian.average_median(1, 5)
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# The average median of the following elements [5] is 5.
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#
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# Invalid inputs
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#
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puts AverageMedian.average_median(2, 3, 1, 5)
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# Provide the required 2 elements properly!
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puts AverageMedian.average_median(2, 3, "a")
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# Traceback (most recent call last):
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# 4: from /Users/voliveira/.rvm/rubies/ruby-2.7.0/bin/irb:23:in `<main>'
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# 3: from /Users/voliveira/.rvm/rubies/ruby-2.7.0/bin/irb:23:in `load'
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# 2: from /Users/voliveira/.rvm/rubies/ruby-2.7.0/lib/ruby/gems/2.7.0/gems/irb-1.2.1/exe/irb:11:in `<top (required)>'
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# 1: from (irb):30
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# NameError (undefined local variable or method `verageMedian' for main:Object)
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puts AverageMedian.average_median("a", 1, 2)
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# Error: Please provide number only!
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